Vitamin A (Vitamin A) Retinal type (also known as Retinaldehyde) is vitamin A. The most effective that the FDA allows for use in cosmetics. Because it can be converted into Retionic Acid within 1 natural process by the skin (it can be converted faster than Retinol and is therefore more effective than Retinol).
Currently, Vitamin A is still the only cosmetic ingredient that is medically accepted as effective in anti-aging and can reduce skin wrinkles.
Retinal when applied to the skin Will be converted to Retonic Acid, which is vitamin A in a form that is ready for use by the skin.
Products using Retinal must be packaged in packaging that protects the formula from normal light. Retinal deteriorates when exposed to light.
*From the research “Bakuchiol to Stabilize Retinol and Polyunsaturated Lipids” by Boxin Ou, PhD, International Chemistry Testing, Milford, MA USA, using Bakuchiol at the rate of 2% of Retinal in the formula.
Results of the experiment on the skin using Retinaldehyde 0.5% for a period of 1 month on the forearm area.
Picture a shows the layer of keratin in the skin, where v is vehicle and r is retinaldehyde 0.5% 1 month, the level of keratin was clearly thickened.
Picture b shows the layer of transglutaminase in the skin, where v is vehicle and r is retinaldehyde 0.5% 1 month found levels of transglutaminase clearly thicker
Image c shows the layer of involucrin in the skin, where v is vehicle and r is retinaldehyde 0.5% 1 month, the level of involucrin was clearly thickened.
Picture d shows the filaggrin layer in the skin, where v is vehicle and r is retinaldehyde 0.5% 1 month, the level of filaggrin was clearly thickened.